UCC2897A
- Low-output jitter
- Soft-stop shutdown of MAIN and AUX
- 110-V input startup function
- Ideal for active-clamp, reset-forward, flyback and synchronous rectifier uses
- Provides complementary auxiliary driver with programmable dead time (Turn-On Delay) between AUX and MAIN switches
- Peak current-mode control with 0.5-V cycle-by-cycle current limiting
- TrueDrive™ 2-A Sink, 2-A source outputs
- Trimmed internal-bandgap reference for accurate line UV and line OV threshold
- Programmable slope compensation
- High-performance 1-MHz synchronizable oscillator with internal timing capacitor
- Precise programmable maximum duty cycle
- PB-free lead finish package
The UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAX limit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.
The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages.
기술 자료
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS2372-4EVM-006 — IEEE802.3bt PoE PD 애플리케이션을 위한 TPS2372-4EVM 평가 모듈
The TPS2372 evaluation module (TPS2372-4EVM-006) contains evaluation and reference circuitry for the TPS2372, which is a IEEE802.3bt PoE PD controller suitable for high power PoE PD applications such as LED lighting and modules.
In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23880.
TPS2373-4EVM-758 — IEEE802.3bt PoE PD 애플리케이션을 위한 TPS2373-4 평가 모듈
TPS2373 평가 모듈(TPS2373-4EVM-758)에는 고전력 PoE PD 애플리케이션에 적합한 IEEE802.3bt PoE PD 컨트롤러인 TPS2373에 대한 평가 및 레퍼런스 회로가 포함되어 있습니다. 이 EVM은 고효율, 70W PD 솔루션을 위한 5V 능동 클램프 순방향 절연 컨버터를 사용하여 설계되었습니다.
IEEE802.3bt 지원 PSE 컨트롤러가 필요하신가요? TPS23880을 확인해 보세요.
UCC2897AEVM — UCC2897A 평가 모듈
The UCC2897A evaluation module (EVM) is an active clamp reset forward converter providing a 3.3-V regulated output at 30 A of load current, operating from a 48-V input. The design operates over the full 36-V to 72-V telecom input range, and is able to fully regulate down to zero load current. The (...)
UCC2897A TINA-TI Startup Transient Reference Design
UCC2897A TINA-TI Steady State Transient Reference Design
많은 TI 레퍼런스 설계에는 UCC2897A이(가) 포함됩니다.
레퍼런스 디자인 선택 툴을 사용하여 애플리케이션 및 매개 변수에 가장 적합한 설계를 검토하고 식별할 수 있습니다.
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
TSSOP (PW) | 20 | Ultra Librarian |
VQFN (RGP) | 20 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치